The New"" Optic-Ready 940 Pro Tactical Autoloader. This 940 Pro model comes optic-ready"" with receiver cuts that accept low-profile direct mounting of Shield RMSc-pattern micro dot sights- for improved eye alignment and target acquisition (a cover plate is included for when an optic is not in use). Inside"" you will find a durable gas system that allows for up to 1500 rounds between cleanings"" and a host of corrosion-resistant internal parts/finishing (nickel boron-coated gas piston"" magazine tube"" hammer and sear